Is there a way to create a list of entries in a file without using vi to create this list ? I like to write a shell script that would create a list like this:
Hi falks,
I need to write a function in k-shell which cd to root directory and ask the user which sub directory you want to tar.
The user will select directories untill quit.
How to do it?
Thanks in advance,
Nir (4 Replies)
Hello everyone,
I am trying to create a script that will make a range or ranges based on a sorted list of numbers.
Eg. If the list is like
1
2
3
4
5
6
7
12
13
14
15
The output range should be:
1-7
12-15 (9 Replies)
Well I did a search and didn't anything for my specific case.
I got a directory with a bunch of text file. All of them have the following pattern on the filename "ABCD_<As of Date>.txt"
Example:
ABCD_20110301.txt
ABCD_20110302.txt
ABCD_20110303.txt
All I want to accomplish is a Korn... (3 Replies)
I have a list of filenames that I want created - they must be created via a certain naming convention due to the software I'm using. Once they are created I have another file that will be used to populate them with data. So far this is what I have:
#For each line in text file "foo_txt" create... (2 Replies)
Hi all,
I couldn't find an answer for this easy question, probably because the keywords I used in the search are too generic.
I just want to make a list of numbers using the value of a variable, like this:
NumFiles=$(ls | wc -l)
for i in {1..$NumFiles}; do
Say $NumFiles = 5. Bash... (3 Replies)
Hello Guys
I have a big list of files in one directory. And Some are missing .
Example
ls -l
2191off-r0.sps
2193off-r0.sps
2194off-r0.sps
2197off-r0.sps
2198off-r0.sps
2200off-r0.sps
I would like to create a file with the list only missing files. Or if is possible to create in ... (4 Replies)
Hi.
I want to create mailing list in my directory, however standart object classes groupOfUniqueNames and groupOfNames don't contain mail attribute. What is the common way to create mailing list in openldap? (0 Replies)
Using the input file for each row , using columns 1 (min) and 2 (max) , and with increment of 4 each time I want to create the output file.
Input file
1000 1012 2000 2001
2000 2008 3000 3001
Output desired
1000 2000 2001
1004 2000 2001
1008 2000 2001
1012 2000 2001
2000 3000 3001... (5 Replies)
Discussion started by: jiam912
5 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS --debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.16.3 2010-06-11 SHELL-QUOTE(1)